Hi, I am having a problem with the climate control in my 94 C280. It does not seem to turn off. I can have it set to 60 either in auto mode, or in manual and the car will not stop blowing heat out. I think it may be mostly the problem of the vents on the sides (by the doors). For instance, last summer I recharged the AC. When I had the car running, cold air was coming out of the middle vents, while hot air was coming out the side vents. Could this just be a blower door stuck open, or a sensor perhaps? Any advice you can give me is greatly appreciated!